Improvement in machines for sawing staves



2 Sheets Sheei I.

B. D. WHITNEY. Improvement in Machines for Sawing Staves.

Patented May 7, I872.

2 Sheets--Sheet 2 ,-B. D. WHITNEY. Improvement in Machines for Sawing Staves. N0. 126,603, Patented May 7,1872.

Fig. 3

UNITED STATES PATENT OEEIo BAXTER D. WHITNEY, OF WINGHENDON, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR SAWING STAVES.

Specification forming part of Letters Patent No. 126,603, dated May 7, 1872.

To all whom it may concern:

I, BAXTER D. WHITNEY, of Winchendon, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Stave-Machines, of which the following is a specification:

The Nature of the Invention.

The nature of my invention consists in combining with a cylinder-saw a carriage for earrying the block or bolt, the exact details of the construction of the same being of such a nature as to be best understood by reference to the specification and drawing.

Description of the Accompanying Drawing.

Figure 1 is a perspective view of the machine. Fig. 2 is a vertical longitudinal section of the same. Fig. 3 is a perspective view, a part of the cylinder-saw being represented as broken away to show the stave-trough, &c. Fig. 4 is a section, showing one of the waypieces 0 and the guide-bars F F F F, upon which the block rests; also showing how the guide-bars are to be adjusted. Fig. 5 is alongitudinal section, showing the feeding-carriage and its adjuncts. Fig. 6 is a plan of the feed ing-carriage. Fig. 7 is a section, showing the housings which support the arbor.

General Description.

I construct my machine as follows: A B A B B, Figs. 1 and 2, represent the frame of my machine, to which the other parts are attached. S, Figs. 1, 2, and 3, is a cylinder-saw running on the arbor S, Fig. 2. To this arbor S is attached the driving-pulley S The sawarbor S runs upon the housings K and L, which are arranged, as shown in the drawing, so that they may adjust themselves to the arbor. The box L, Fig. 2, is hung on a swivel, L which passes down through the frame B and terminates in a screw, upon which the screw-nut L acts. i are washers, which may be inserted between the shoulder of L and the upper part of the frame B, so that the height of the housing L may be varied. The housing K, at the other end of the arbor S is adjusted in a different manner. The upper part Kis hung upon the standard K, being made fast to it by a pin, k, (see Fig. 7.) This standard K passes nearly through the frame B, and is held in position vertically by the screws k W, which pass through the plate k, which is made fast to the frame B by screws, as shown. The screw k passes up into the standard K, so as to hold it down at any desired position, while the screw 10" screws through the plate and against the under side of the standard, so as to react against the tendency of the screw k By these screws k k the standard K may be adjusted to any desired position. The wayplate G G, Figs. 1, 2, and 3, is attached to the frame A B by bolts. 0 is an extension of the way-plate G G, which passes into the interior of the oylinder saw S and forms one side of the stave-trough P, Figs. 1 and 2. This extension 0 is held rigidly in place by the brace 0 Fig. 3. The other side of the stave-trough is formed by the piece P, Fig. 1. Upon the interior of the sides of the stave-trough, at the line of junction with the bottom of the trough, longitudinal channels 12 1), Fig. 1, are cast, to serve as guides for the hoe or staveremover M, Fig. 2. The hoe M is made to operate by the handle N, which is connected by eye-joint O to the arm 0, which is made fast to the carriage E, Fig. 1.

From the above it will be seen that the hoe moves with the carriage, so that, at the time a stave is sawed and ready to drop into the trough, the hoe is at the upper end of the trough, and as the carriage is drawn back will withdraw and bring the stave with it; the eye-hinge 0 allowing the hoe to follow the incline of the trough.

The way-bar G is attached to the way-plate G G by means of the cross-pieces G O C, Fig. 1. D D D, &c., Figs, 1 and 3, are rollers attached to the way-plate 0 O and the way bar 0 and serve as friction-rolls for the carriage E E. D, Fig. 3, is a horizontal roller attached to a spring-bar, D, and so arranged that it may be adjusted, by the screw d, so as to prevent the lateral motion of the carriage, which would otherwise take place from the pressure caused by the cut of the saw against the log or bolt while the sawing is taking place. The carriage E, upon which the log or bolt is made fast while being sawed, consists of two side-pieces E E, which run on rolls D D D D, &c., attached to the ways 0 and C. These side-pieces are fastened together by the braces E and E Figs. 1, 5, and 6, which are firmly 7 jnsting-gauge.

bolted; the brace E being adjustable. Attached to the brace E is a series of points or spears, G, Figs. 1, 2, 5, and 6. H, Figs. 5and 6, is a sliding rack, at the end of which a series of points or spears, G are made. H is a segmentgear, operated by the lever H. In spection of Figs. 2 and 5 will show that by simply moving the handle H the rack H and spears G will advance or retreat. To fasten the log or bolt into the carriage it is only necessary to place it on the guide-bars F F, &c., Figs. 5 and 6, and to force the spears G and G into the ends by a movement of the levers H which action throws forward the rack H and spears G, the pressure of the spears G upon the log or bolt serving to force the same against the spears G at the other end. The guide-bars F F F F" are attached to a basepiece or arm, F, Fig. 4, which extends from a plate, F, which, in its turn, is made fast to the way-plate C by the screwsff f, Fig. 4. The screws f f 1 serve to clasp the plate 1 to the way-plate, while the screw f 4 serves as an ad- E, Figs. 1, 3, and 6 is a handle attached to the carriage E E, by which it is moved. B. Fig. 1, is a piece of rubber, or some other elastic material, attached to the piece 0 to ease the stroke of the carriage in its forward motion. It is a piece of wood attached to the way-piece C, and serves as a stop to the carriage, while the inertia of the block disengages it from the teeth G, the handle 11 being raised. The guide-bars or supports F F F F", on which the wood or bolt rests, are placed sutficiently near each other, that the smallest bolt will cover two of them, the object of the openings between them being to allow splints or bark from the bolt to fall through, so as not to be in the way of the bolt, and thus to cause the stave to be of unequal thickness. The housing K is made compact, as described, so as to allow of the saw being filed while in position. The rack His made with openings between the teeth, so that dirt, sawdust, &c., may not accumulatebetween them and obstruct the action of the segmentgear H That part of the brace E upon which the rack H rests is provided with openings, to admit of the passage of dirt, sawdust, &0., as they fall from the openings in the rack.

I claim as my invention- 1. The carriage E, provided with the dogging devices H G, in combination with the frame 0, having rollers D D and saw S, all constructed as shown and described, for the purpose set forth.

2. In combination with the carriage E, the arm 0, and rod N, constructed as and for the purposes specified.

BAXTER D. WHITNEY.

Witnesses:

JAS. S. CONANT, FRANK G. PARKER. 

